Gok Sree

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7 years, 6 months ago.

How to extract this ( KoIEIkCAAACnAAAAIE4AAAAAAAAAAAAA////////9wMAAAACQB) from the CAN bus??

Hello,

I need help on a task that requires me to extract a key KoIEIkCAAACnAAAAIE4AAAAAAAAAAAAA//9wMAAAACQB from the CAN bus . There is no need to interpret it but I just need to extract this from the CAN bus. The Identifier is 11bit and the Data is 60 byte in all coming from the multiplexers. Could you help me start with this peoject.

kindly advise

1 Answer

Zoltan Hudak
7 years, 6 months ago.

Hello Gok,
A single CAN packet can have from zero up to 8 bytes of data. A newer CAN called CAN-FD (CAN with Flexible Data rate) can carry up to 64 bytes in a single packet but according to my knowledge neither the mbed enabled chips/boards nor the mbed CAN library support that.

There are standard higher level protocols that run over CAN and allow multi-frame messages for when you need to transfer more than 8 bytes. However as with most standards you need to know which standard (if any) is being used before you can get anywhere.

posted by Andy A 27 Oct 2016